Brochures and Data Sheets

Electrical Features:
Listed under UL 1008, CSA certified:
- UL listed through 480 VAC.
- CSA certified through 600 VAC.
Door-mounted selector switch for local, manually initiated
electrical control.
Sizes from 30 through 3000 amps.
Available to 600 VAC, 50 or 60 Hz.
Rated for all classes of load transfer.
100% tungsten load ratings through 400 amps.
Designed for emergency and standby applications.
Same withstand and close-on rating as
SerieS 300.
Standard Selectable Control Features:
Inphase monitor to transfer motor loads between live sources,
without any intentional off time, to prevent inrush currents from
exceeding normal starting levels.
Selective load disconnect, double-throw contact to
operate at an adjustable 0 to 20 second time delay prior to trans-
fer and reset 0 to 20 seconds after transfer.
High/Low nominal voltage setting. Allows user to adjust for source
low reduced voltage conditions in remote areas.
60 Hz or 50 Hz selectable switch.
Single/Three-phase selectable switch.
Control Features:
Switch position indicating signal lights.
One auxiliary contact closed when transfer switch is
connected to normal and one closed on emergency,
standard feature 14A/14B.
Optional Accessories:
6Q Key-operated, momentary source selector switch
furnished instead of the standard selector switch.
9C, 9D Source availability lights to provide operator with a local
indication of power source availability.
Accessory 14AA/14BA auxiliary contacts to indicate
position of main contacts. Two (2) for normal position and two
(2) for emergency position (one set is standard).
72A Serial module (5110) is used to allow local or remote
communications with ASCO POWERQUEST
®
connectivity
products.
Special Enclosures
(Specify by appropriate code in catalog number):
Type 3R: Rain-tight
Type 4: Weatherproof
Type 12: Oil Tight
72E Connectivity Module 5150 is used to bring several
different serial devices that communicate at different
baud rates and with different protocols to a common
Ethernet media.
User-Initiated Control
ASCO 386 non-automatic transfer switches are generally used in applications where operating personnel are available
and the load is not an emergency type requiring automatic transfer of power. The power-switching mechanism
and controller is the same hardware used on the highly reliable ASCO
SerieS 300 transfer switches. ASCO 386s are
furnished as standard with a momentary-type selector switch to initiate transfer and re-transfer. They can also be
arranged for remote control via ASCO’s connectivity products.
Fig. 15: Control and Display Panel
Fig. 14: ASCO 386 400 Amp
Type 1 Enclosure w/Optional
Accessories 9C, 9D Source
Availability Lights
series 386 Non-Automatic Power Transfer Switches
9